MF_POPUP top-level constant
int
const MF_POPUP
Specifies that the menu item opens a drop-down menu or submenu. The uIDNewItem parameter specifies a handle to the drop-down menu or submenu. This flag is used to add a menu name to a menu bar, or a menu item that opens a submenu to a drop-down menu, submenu, or shortcut menu.
Implementation
const MF_POPUP = 0x00000010;